An overview of unipolar charger developments for nanoparticle charging

Charging of nanoparticles is an important process in aerosol sizing. A unipolar charger is one of the most important upstream components in aerosol particle sizing and measurement systems by electrical mobility analysis. The aim of particle charging for an electrical mobility analyzer is to impose a...

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Main Authors: Panich Intra, Nakorn Tippayawong
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/50008
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spelling th-cmuir.6653943832-500082018-09-04T04:21:44Z An overview of unipolar charger developments for nanoparticle charging Panich Intra Nakorn Tippayawong Environmental Science Charging of nanoparticles is an important process in aerosol sizing. A unipolar charger is one of the most important upstream components in aerosol particle sizing and measurement systems by electrical mobility analysis. The aim of particle charging for an electrical mobility analyzer is to impose a known net charge distribution on the aerosol particles for each size. Charger performance depends on the extrinsic charging efficiency and stable operation. A well-designed unipolar charger should provide high extrinsic charging efficiency and stability that can be accurately determined for any given operating conditions. Depending on the mechanisms used to generate the ionized gas, the chargers can be classified into: (i) a corona discharge chargers, (ii) a radioactive chargers, and (iii) a photoelectric chargers. In this article, a brief overview on the development of existing unipolar aerosol chargers for nanoparticles is presented. Descriptions of the operating principles as well as detailed physical characteristics of these chargers, including the corona discharge, ionizing radiation, and photoelectron emission, are given. © Taiwan Association for Aerosol Research. 2018-09-04T04:21:44Z 2018-09-04T04:21:44Z 2011-04-01 Journal 20711409 16808584 2-s2.0-79953136011 10.4209/aaqr.2010.10.0082 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79953136011&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/50008
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Environmental Science
spellingShingle Environmental Science
Panich Intra
Nakorn Tippayawong
An overview of unipolar charger developments for nanoparticle charging
description Charging of nanoparticles is an important process in aerosol sizing. A unipolar charger is one of the most important upstream components in aerosol particle sizing and measurement systems by electrical mobility analysis. The aim of particle charging for an electrical mobility analyzer is to impose a known net charge distribution on the aerosol particles for each size. Charger performance depends on the extrinsic charging efficiency and stable operation. A well-designed unipolar charger should provide high extrinsic charging efficiency and stability that can be accurately determined for any given operating conditions. Depending on the mechanisms used to generate the ionized gas, the chargers can be classified into: (i) a corona discharge chargers, (ii) a radioactive chargers, and (iii) a photoelectric chargers. In this article, a brief overview on the development of existing unipolar aerosol chargers for nanoparticles is presented. Descriptions of the operating principles as well as detailed physical characteristics of these chargers, including the corona discharge, ionizing radiation, and photoelectron emission, are given. © Taiwan Association for Aerosol Research.
format Journal
author Panich Intra
Nakorn Tippayawong
author_facet Panich Intra
Nakorn Tippayawong
author_sort Panich Intra
title An overview of unipolar charger developments for nanoparticle charging
title_short An overview of unipolar charger developments for nanoparticle charging
title_full An overview of unipolar charger developments for nanoparticle charging
title_fullStr An overview of unipolar charger developments for nanoparticle charging
title_full_unstemmed An overview of unipolar charger developments for nanoparticle charging
title_sort overview of unipolar charger developments for nanoparticle charging
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79953136011&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/50008
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